Section 4 - Maintenance
90-8M0113859 eng DECEMBER 2015 Page 53
4.3 ECT gear lube monitor, seawater cooled models
5.0 ECT engines
a - Seawater cooled models
b - Closed cooling models
2. Inspect the gear lube condition. If any water is visible in the bottom of the gear lube monitor, if water appears at the fill and
drain plug hole, or if the gear lube appears discolored, these conditions can indicate a water leak in the sterndrive.
Filling
IMPORTANT: If more than 59 ml (2 fl oz) of gear lubricant is required to fill the monitor, a seal may be leaking. Damage to the
sterndrive unit may occur due to lack of lubrication. Contact your authorized Mercury MerCruiser dealer.
1. Remove the gear lube monitor cap.
2. Fill the monitor with the specified fluid so that the gear lube level is in the operating range. Do not overfill.
a - "ADD" mark
b - "OPERATING RANGE" mark
Tube Ref No. Description Where Used Part No.
87
High Performance Gear Lubricant Gear lube monitor 92-858064K01
3. Ensure that the rubber gasket is inside the cap and install. Do not overtighten.
NOTE: When filling the entire sterndrive unit refer to
Changing
.
Changing
1. Remove the gear lube monitor from the bracket.
2. Remove the gear lube monitor cap and empty the contents into a suitable container.
19948
b
a
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